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Catalytic removal of ozone and design of an ozone converter for the bleeding air purification of aircraft cabin

机译：催化去除臭氧并设计用于空气净化的机舱臭氧转换器

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摘要

Ozone is a major gaseous pollutant in the aircraft cabin environments. The objective of this study is to experimentally investigate the ozone removal capability of the catalyst palladium loading on the activated carbon fiber (Pd/ACFs) under various operating conditions. First, the effects of the activated carbon fibers on ozone removal are analyzed. The results show that the ozone removal over ACFs tomes from the coupling effects of adsorption, chemical reaction and catalysis. The ozone conversion over the Pd/ ACFs film is then confirmed to be effective when the temperature is higher than 90 degrees C. The ozone removal rate over the Pd/ACFs exceeds 98% after accelerating test with an initial concentration of 37 ppm at temperature of 150 degrees C for 80 h. The catalyst film Pd/ACFs can meet the flight requirement for 5000 h. Based on the one-trough test results, a honeycomb reactor filled with catalyst Pd/ACFs was designed and built. The test of the reactor performance shows that the catalyst film Pd/ACFs is a good choose for the ozone removal in the bleed air of aircraft cabin. However, the pressure drop in the self manufactured reactor is slightly high. Therefore, it is better to optimize the configuration of the ozone converter to meet the requirement of pressure drop in the future. (C) 2017 Elsevier Ltd. All rights reserved.
机译：臭氧是机舱环境中的主要气体污染物。这项研究的目的是实验研究在各种操作条件下负载在活性炭纤维（Pd / ACF）上的催化剂钯的臭氧去除能力。首先，分析了活性炭纤维对臭氧去除的影响。结果表明，吸附，化学反应和催化的耦合作用使ACFs上的臭氧去除。然后，当温度高于90摄氏度时，可以确认在Pd / ACFs膜上进行的臭氧转化是有效的。在以37 ppm的初始浓度进行加速测试后，温度在90℃下，Pd / ACFs上的臭氧去除率超过98％。 150摄氏度，持续80小时。催化剂膜Pd / ACFs可以满足飞行5000小时的飞行要求。基于单槽测试结果，设计并建造了装有催化剂Pd / ACF的蜂窝反应器。反应堆性能测试表明，催化剂膜Pd / ACFs是去除机舱引气中臭氧的良好选择。但是，自制反应器中的压降略高。因此，最好对臭氧转换器的结构进行优化，以满足将来对压降的要求。 （C）2017 Elsevier Ltd.保留所有权利。

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  • 来源
    《Building and Environment》 |2017年第4期|25-33|共9页
  • 作者

    Wu Fan; Wang Mingyuan; Lu Yuanwei; Zhang Xingjuan; Yang Chunxin;

  • 作者单位

    Beijing Univ Technol, Coll Environm & Energy Engn, Key Lab Enhanced Heat Transfer & Energy Conservat, Minist Educ China, Beijing 100124, Peoples R China;

    Beijing Univ Technol, Coll Environm & Energy Engn, Key Lab Enhanced Heat Transfer & Energy Conservat, Minist Educ China, Beijing 100124, Peoples R China;

    Beijing Univ Technol, Coll Environm & Energy Engn, Key Lab Enhanced Heat Transfer & Energy Conservat, Minist Educ China, Beijing 100124, Peoples R China;

    Beihang Univ, Sch Aeronaut Sci & Engn, Beijing 100191, Peoples R China;

    Beihang Univ, Sch Aeronaut Sci & Engn, Beijing 100191, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Ozone; Aircraft cabin; Ozone removal; Pd/ACFs; Ozone converter;

    机译：臭氧;机舱;除臭氧;Pd / ACFs;臭氧转化器;

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